Reactor for petroleum wastewater treatment and use method thereof

Abstract

The invention belongs to the field of wastewater treatment, and provides a reactor for petroleum wastewater treatment and a using method thereof.The reactor comprises a shell, the shell is communicated with a first feeding pipe and a second feeding pipe, the bottom of the shell is communicated with a sewage discharging box, and a partition filter plate is fixedly installed in the middle of the interior of the shell; a separation filter plate is arranged in the shell, a microbial filler and a modified catalyst filler are arranged on the separation filter plate, the modified catalyst filler is positioned above the microbial filler, a plurality of groups of aeration pipes which are uniformly distributed and positioned below the separation filter plate are fixedly mounted in the shell, and the aeration pipes are connected with external air supply equipment. Compared with the prior art, the cleaning device has the following beneficial effects that when the cleaning plate moves reversely, the limiting block can exert acting force enabling the cleaning plate to rotate on the cleaning plate, and when the fixing frame makes contact with the second magnet and is fixed, the cleaning plate can cross the limiting block and keep an inclined state at the moment; therefore, the cleaning plate is prevented from pushing newly generated sludge at the bottom of the shell to move towards the end part of the shell.

Description

Technical Field

[0001] The invention belongs to the field of wastewater treatment, and in particular relates to a reactor for treating petroleum wastewater and a use method thereof. Background Art

[0002] Petroleum wastewater usually contains a large number of harmful components, especially nitrogen-containing organic matter. These organic matter not only cause serious pollution to the environment, but also have a toxic effect on organisms in the water body. Although traditional wastewater treatment methods can remove some nitrogen-containing organic matter, there are problems such as low treatment efficiency and high operating costs.

[0003] In the prior art, wastewater is generally cleaned through a biofilm reactor. The existing biofilm reactor cannot effectively clean the precipitated sludge when in use, thereby affecting the biofilm reactor's treatment efficiency and performance for wastewater. In response to the above technical problems, a Chinese patent with patent announcement number CN215667310U uses two sets of movable plates to push the sludge to the middle position when in use. When the movement is reversed and reset, the newly generated sludge will be pushed by the movable plate to move toward the direction close to the side wall of the reactor body. The newly generated sludge will be squeezed against the side wall of the reactor body by the movable plate. This part of the sludge cannot be cleaned during subsequent cleaning, resulting in poor sludge cleaning effect. Summary of the invention

[0004] The purpose of the present invention is to provide a reactor for treating petroleum wastewater and a method for using the same, aiming to solve the technical problem in the prior art that part of the newly generated sludge is squeezed onto the side wall of the equipment when cleaning the sludge, resulting in sludge residue.

[0005] The present invention is implemented as follows: a reactor for treating petroleum wastewater comprises a shell, a first feed pipe and a second feed pipe are connected to the shell, a sewage tank is connected to the bottom of the shell, a partition filter plate is fixedly installed in the middle of the shell, a microbial filler and a modified catalyst filler are arranged on the partition filter plate, and the modified catalyst filler is located above the microbial filler, a plurality of aeration pipes evenly distributed and located below the partition filter plate are fixedly installed in the shell, and the aeration pipes are connected to an external air supply device; A plurality of parallel cross bars are fixedly installed in the shell and are located between the aeration pipe and the bottom side wall of the shell. Two groups of symmetrically distributed movable plates are slidably installed on the cross bars. A servo module for driving the two groups of movable plates to move synchronously in opposite directions is arranged in the shell. A cleaning plate is rotatably installed on the movable plate, and a mounting shaft is fixedly installed on the cleaning plate, which is rotatably connected to the movable plate. A fixing frame is fixedly installed on the mounting shaft. A cover is fixedly installed on the movable plate at a position connected to the mounting shaft, and a first magnet and a second magnet are fixedly installed in the cover. When the cleaning plate is in a vertical state, the fixing frame contacts and is fixed to the first magnet, and the cleaning plate is in sliding contact with the bottom surface of the shell. When the cleaning plate is in an inclined state, the fixing frame contacts and is fixed to the second magnet, and there is a gap between the lower end of the cleaning plate and the bottom surface of the shell. A limit block for pushing the cleaning plate to rotate is arranged in the shell.

[0006] Further technical solution: a rotating plate is rotatably mounted on the top of the shell, the second feed pipe is fixedly mounted on the rotating plate and passes through the rotating plate, and a light-transmitting glass is arranged around the rotating plate on the top of the shell.

[0007] Further technical solution: a spiral blade driven by a rotating power member is rotatably installed in the sewage box, and one end of the sewage box is connected to a sewage pipe with a valve.

[0008] Further technical solution: the limit blocks are provided in four groups and are symmetrically slidably installed on the side walls of the shell, the limit blocks are located on the moving track of the cleaning plate, the side of the limit blocks close to the corresponding cleaning plate is set as an inclined structure, and an installation chamber covering the limit blocks is fixedly installed on the outer side of the shell, and a first elastic member is fixedly installed in the installation chamber, and the movable end of the first elastic member is fixedly connected to the end of the limit block.

[0009] Further technical solution: a slot is provided on the side wall of the shell located on the extension line of the moving trajectory of the cleaning plate, a push plate is slidably installed in the slot, a gap is provided between the bottom of the push plate and the side wall of the slot, a second elastic member is fixedly installed on the side of the push plate away from the cleaning plate, one end of the second elastic member away from the push plate is fixedly connected to the side wall of the shell, and when the second elastic member is in its original length state, the push plate extends out of the slot.

[0010] Further technical solution: a plurality of sets of parallelly distributed mounting rods are fixedly installed in the slot, the mounting rods are slidably connected to the push plate, and when the push plate completely enters the slot, its side surface is flush with the inner wall of the shell.

[0011] Further technical solution: a slide groove is provided at the position where the bottom side wall of the shell is connected to the sewage box, a closing plate is slidably installed in the slide groove, a third magnet is fixedly installed at the end of the closing plate, and when the cleaning plate moves, it contacts the third magnet and pushes the closing plate to move, and a magnetic structure is provided at the position where the cleaning plate contacts the third magnet for adsorption and fixation with the third magnet.

[0012] The present invention also provides a method of use, which is applied to the above-mentioned reactor for treating petroleum wastewater, and comprises the following steps: Step S1: transporting the microbial filler into the shell through the first feed pipe, transporting the wastewater to be treated into the shell through the first feed pipe until the liquid level reaches a set height, and at the same time, introducing air into the aeration pipe through an external air supply device; Step S2: after the reaction in the shell is stably carried out, the modified catalyst filler is transported into the shell through the second feed pipe; Step S3: When there is a lot of sludge at the bottom of the shell, the servo module drives the two sets of cleaning plates to move toward the middle through the moving plate. When the cleaning plates move, they push the sludge at the bottom of the shell to move toward the middle, and the sludge is pushed into the sewage tank. Subsequently, the valve on the sewage pipe is opened, and the spiral blades are driven to rotate by the rotating power part to discharge the sludge from the sewage pipe, and then the cleaning plates are reset; Step S4: When the cleaning plate moves in the opposite direction and contacts the limit block, the limit block will apply a force to the cleaning plate to make it rotate until the fixing frame contacts and fixes the second magnet. At this time, the cleaning plate can pass the limit block and maintain an inclined state. When the inclined upper end of the cleaning plate contacts the side wall of the shell again, the cleaning plate rotates and resets.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When there is a lot of sludge at the bottom of the shell, the servo module drives the two groups of cleaning plates to move toward the middle through the moving plate. When the cleaning plate moves, it pushes the sludge at the bottom of the shell to move toward the middle and fall into the sewage tank. Then the servo module drives the two groups of moving plates to reset. When the cleaning plate moves in the opposite direction and contacts the limit block, the cleaning plate cannot push the limit block to move. When the moving plate continues to move, the limit block will apply a force to the cleaning plate to make it rotate, thereby causing the fixed frame to be separated from the fixation with the first magnet. At this time, the cleaning plate can rotate freely. When the position where the lower end of the cleaning plate contacts the limit block is the upper surface of the limit block, the fixed frame contacts and is fixed with the second magnet. At this time, the cleaning plate can pass the limit block and remain in an inclined state, thereby preventing the cleaning plate from pushing the newly generated sludge at the bottom of the shell to move toward the end of the shell, avoiding sludge remaining between the cleaning plate and the side wall of the shell, and improving the cleaning effect of the sludge.

[0014] 2. When the inclined upper end of the cleaning plate contacts the side wall of the shell again, the movable plate continues to move to disengage the fixed frame from the second magnet under the restriction of the side wall of the shell, and the cleaning plate rotates in the opposite direction again until it becomes vertical and completely fits the side wall of the shell. When the cleaning plate contacts the side wall of the shell and rotates to reset, the wastewater in the front side of the rotation direction is squeezed, and then the wastewater flows from the lower side of the cleaning plate away from the side wall of the shell, thereby pushing away the newly generated sludge near the end position of the shell, so that the cleaning plate can fit the side wall of the shell after reset, further avoiding residual sludge between the cleaning plate and the side wall of the shell, and improving the sludge cleaning effect.

[0015] 3. When the cleaning plate moves away from the push plate, the push plate moves away from the card slot under the action of the second elastic member, and the waste water can enter the card slot. After that, when the cleaning plate is reset, it will push the push plate into the card slot. At this time, the push plate will squeeze out the waste water in the card slot, and the waste water will flow out quickly through the gap set between the bottom of the push plate and the card slot, further pushing the sludge at the bottom of the shell where the card slot is located to move away from the card slot, further improving the cleanliness of the cleaning plate, reducing the residual sludge, and further improving the sludge cleaning effect.

[0016] 4. When the cleaning plate moves to the position in contact with the third magnet, the sludge is pushed into the sewage box. At this time, the cleaning plate continues to move and drives the closing plate to move through the third magnet. When the two sets of closing plates are in contact, they stop moving. At this time, the connection between the sewage box and the shell is blocked by the closing plate, and then the sludge is discharged through the spiral blades. The closing plate blocks the sludge from entering the shell by the wastewater backflow when the spiral blades rotate, so that the sludge can be quickly discharged, further improving the sludge cleaning effect. After the sludge is cleaned, the cleaning plate moves in the opposite direction and drives the closing plate to reset through the adsorption of the third magnet and the cleaning plate. After the closing plate is reset, the cleaning plate is separated from the closing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is the front view of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure inside the shell of the present invention.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the cover in the present invention.

[0021] Figure 5 for Figure 2 A magnified schematic diagram of the A1 region in the middle.

[0022] Figure 6 for Figure 2 A magnified schematic diagram of the A2 region in the middle.

[0023] Figure 7 for Figure 4 A magnified schematic diagram of the A3 region in the middle.

[0024] Figure 8 It is a schematic cross-sectional structural diagram of the installation chamber in the present invention.

[0025] In the attached drawings: 1. Shell; 2. First feed pipe; 3. Rotating plate; 4. Second feed pipe; 5. Separating filter plate; 6. Aeration pipe; 7. Cross bar; 8. Moving plate; 9. Servo module; 10. Cleaning plate; 11. Mounting shaft; 12. Fixing frame; 13. Cover; 14. First magnet; 15. Second magnet; 16. Sewage tank; 17. Spiral blade; 18. Rotating power part; 19. Mounting chamber; 20. First elastic part; 21. Limiting block; 22. Slot; 23. Push plate; 24. Mounting rod; 25. Second elastic part; 26. Slide; 27. Closing plate; 28. Third magnet; 29. ​​Microbial filler; 30. Modified catalyst filler. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0028] like Figure 1-Figure 8 As shown, a reactor for treating petroleum wastewater provided by the present invention comprises a shell 1, a first feed pipe 2 and a second feed pipe 4 are connected to the shell 1, a rotating plate 3 is rotatably mounted on the top of the shell 1, the second feed pipe 4 is fixedly mounted on the rotating plate 3 and penetrates the rotating plate 3, a light-transmitting glass is arranged around the rotating plate 3 on the top of the shell 1, a sewage box 16 is connected to the bottom of the shell 1, a spiral blade 17 driven by a rotating power member 18 is rotatably mounted in the sewage box 16, one end of the sewage box 16 is connected to a sewage pipe with a valve, a partition filter plate 5 is fixedly mounted in the middle of the shell 1, a microbial filler 29 and a modified catalyst filler 30 are arranged on the partition filter plate 5, and the modified catalyst filler 30 is located above the microbial filler 29, a plurality of groups of aeration pipes 6 evenly distributed and located below the partition filter plate 5 are fixedly mounted in the shell 1, and the aeration pipes 6 are connected to an external air supply device; A plurality of parallel cross bars 7 are fixedly installed in the shell 1 and are located between the aeration pipe 6 and the bottom side wall of the shell 1. Two groups of symmetrically distributed moving plates 8 are slidably installed on the cross bars 7. A servo module 9 is provided in the shell 1 to drive the two groups of moving plates 8 to move synchronously in opposite directions. A cleaning plate 10 is rotatably installed on the moving plate 8. A mounting shaft 11 is fixedly installed on the cleaning plate 10. The mounting shaft 11 is rotatably connected to the moving plate 8. A fixing frame 12 is fixedly installed on the mounting shaft 11. A cover 13 is fixedly installed at the position connected to the mounting shaft 11 on the moving plate 8. A first magnet 14 and a second magnet 15 are fixedly installed in the cover 13. When the cleaning plate 10 is in a vertical state, the fixing frame 12 contacts and fixes the first magnet 14, and The cleaning plate 10 is in sliding contact with the bottom surface of the shell 1. When the cleaning plate 10 is in an inclined state, the fixing frame 12 is in contact with and fixed to the second magnet 15, and there is a gap between the lower end of the cleaning plate 10 and the bottom surface of the shell 1. A limit block 21 is provided in the shell 1 to push the cleaning plate 10 to rotate. The limit block 21 is provided in four groups and is symmetrically slidably installed on the side wall of the shell 1. The limit block 21 is located on the moving trajectory of the cleaning plate 10. The side of the limit block 21 close to the corresponding cleaning plate 10 is set to an inclined structure. An installation chamber 19 covering the limit block 21 is fixedly installed on the outer side of the shell 1, and a first elastic member 20 is fixedly installed in the installation chamber 19. The movable end of the first elastic member 20 is fixedly connected to the end of the limit block 21.

[0029] In actual application of this embodiment, the microbial filler 29 is transported into the shell 1 through the first feed pipe 2, and the wastewater to be treated is transported into the shell 1 through the first feed pipe 2 until the set liquid level is reached. At this time, the microbial filler 29 floats in the wastewater, and air is introduced into the aeration pipe 6 through the external air supply equipment. The air forms bubbles that move upward in the wastewater, so that the wastewater can fully contact with the microbial filler 29. The wastewater is treated by the microbial filler 29, and the sludge adsorbed on the microbial filler 29 will fall downward to the bottom of the shell 1 and the sewage tank 16. The separation filter plate 5 prevents the microbial filler 29 from moving downward. After the reaction in the shell 1 is stabilized , the modified catalyst filler 30 is transported into the shell 1 through the second feed pipe 4, and the rotating plate 3 is rotated to distribute the modified catalyst filler 30 at different positions, so that the modified catalyst filler 30 is distributed more evenly, the modified catalyst filler 30 is located in the middle and upper layers, and the microbial filler 29 is located in the middle and lower layers. The complex and toxic nitrogen-containing organic matter that is difficult to be directly degraded by microorganisms is degraded into carbon dioxide, water and nitrogen-containing organic matter that is easily degraded by microorganisms through the modified catalyst filler 30. Subsequently, in the middle and lower layers, the nitrogen-containing organic matter is further processed by the microbial filler 29 to make it completely degraded. Through the synergistic effect of the photocatalyst and the microorganisms, the removal efficiency of the nitrogen-containing organic matter in the petroleum wastewater is improved; In the initial state, the cleaning plate 10 is in a vertical state and contacts the side wall of the shell 1. When there is a lot of sludge at the bottom of the shell 1, the servo module 9 drives the two groups of cleaning plates 10 to move toward the middle through the moving plate 8. When the cleaning plate 10 moves, it pushes the sludge at the bottom of the shell 1 to move toward the middle, and finally the sludge falls into the sewage tank 16. During the movement of the cleaning plate 10 toward the middle, it will contact the inclined surface of the limit block 21. At this time, the cleaning plate 10 will push the limit block 21 to move and compress the first elastic member 20 through the inclined surface, so that the limit block 21 no longer extends out of the side wall of the shell 1, and the cleaning plate 10 can move normally. When the cleaning plate 10 moves to the position where the shell 1 is connected to the sewage tank 16, the sludge is pushed into the sewage tank 16. Subsequently, the valve on the sewage pipe is opened, and the spiral blade 17 is driven to rotate by the rotating power member 18 to discharge the sludge from the sewage pipe. Afterwards, the servo module 9 drives the two groups of movable plates 8 to reset. When the cleaning plate 10 moves in the opposite direction and contacts the limit block 21, the cleaning plate 10 cannot push the limit block 21 to move. When the movable plate 8 continues to move, the limit block 21 will apply a force to the cleaning plate 10 to make it rotate, thereby causing the fixing frame 12 to be separated from the fixation with the first magnet 14. At this time, the cleaning plate 10 can rotate freely. When the position where the lower end of the cleaning plate 10 contacts the limit block 21 is the upper surface of the limit block 21, the fixing frame 12 contacts and is fixed with the second magnet 15. At this time, the cleaning plate 10 can pass the limit block 21 and maintain an inclined state, thereby preventing the cleaning plate 10 from pushing the newly generated sludge at the bottom of the shell 1 to move toward the end of the shell 1, and preventing the sludge from remaining between the cleaning plate 10 and the shell The cleaning plate 10 is moved between the side walls of the shell 1 to improve the cleaning effect of the sludge. When the inclined upper end of the cleaning plate 10 contacts the side walls of the shell 1 again, the movable plate 8 continues to move to disengage the fixing frame 12 from the second magnet 15 under the restriction of the side walls of the shell 1, and the cleaning plate 10 rotates in the opposite direction again until it becomes vertical and completely fits with the side walls of the shell 1. When the cleaning plate 10 contacts the side walls of the shell 1 and rotates to reset, the wastewater in the front side of the rotation direction is squeezed, and then the wastewater flows from the lower side of the cleaning plate 10 to the direction away from the side walls of the shell 1, thereby pushing away the newly generated sludge near the end position of the shell 1, so that the cleaning plate 10 can fit with the side walls of the shell 1 after being reset, further avoiding residual sludge between the cleaning plate 10 and the side walls of the shell 1, and improving the cleaning effect of the sludge.

[0030] In an example of this embodiment, the rotating power part 18 is a motor, and of course it can also be other parts that can output rotational power such as a hydraulic motor. The motor drives the spiral blade 17 to rotate to achieve the discharge of sludge. The first elastic part 20 is a first spring, and of course it can also be other elastic parts such as an elastic ball. The first spring applies a reset thrust to the limit block 21.

[0031] like Figure 2 , Figure 5As shown, a reactor for treating petroleum wastewater provided by the present invention is provided, a slot 22 is provided on the side wall of the shell 1 located on the extension line of the moving trajectory of the cleaning plate 10, a push plate 23 is slidably installed in the slot 22, a gap is provided between the bottom of the push plate 23 and the side wall of the slot 22, a second elastic member 25 is fixedly installed on the side of the push plate 23 away from the cleaning plate 10, one end of the second elastic member 25 away from the push plate 23 is fixedly connected to the side wall of the shell 1, and the push plate 23 extends out of the slot 22 when the second elastic member 25 is in the original length state.

[0032] Specifically, a plurality of sets of parallelly distributed mounting rods 24 are fixedly installed in the slot 22 , and the mounting rods 24 are slidably connected to the push plate 23 . When the push plate 23 completely enters the slot 22 , its side surface is flush with the inner wall of the housing 1 .

[0033] When this embodiment is actually used, in the initial state, the push plate 23 is completely located in the card slot 22 under the squeezing of the cleaning plate 10, and the second elastic member 25 is in a compressed state. When the cleaning plate 10 moves away from the push plate 23, the push plate 23 is moved away from the card slot 22 under the action of the second elastic member 25, and the waste water can enter the card slot 22 at this time. After that, when the cleaning plate 10 is reset, it will push the push plate 23 into the card slot 22. At this time, the push plate 23 will squeeze out the waste water in the card slot 22, and the waste water will quickly flow out through the gap set below the push plate 23 and the card slot 22, further pushing the sludge at the bottom of the shell 1 where the card slot 22 is located to move away from the card slot 22, further improving the cleanliness of the position where the cleaning plate 10 is located, reducing the residual sludge, and further improving the sludge cleaning effect.

[0034] In an embodiment of the present invention, the second elastic member 25 is a second spring, and can also be other elastic members such as an elastic ball, and the second spring applies a thrust to the push plate 23 .

[0035] like Figure 2 , Figure 6 As shown, a reactor for treating petroleum wastewater provided by the present invention is provided, a slide groove 26 is provided at the position where the bottom side wall of the shell 1 is connected to the sewage tank 16, a closing plate 27 is slidably installed in the slide groove 26, and a third magnet 28 is fixedly installed at the end of the closing plate 27. When the cleaning plate 10 moves, it contacts the third magnet 28 and pushes the closing plate 27 to move, and a magnetic structure is provided at the position where the cleaning plate 10 contacts the third magnet 28 for adsorption and fixation with the third magnet 28.

[0036] In actual application of this embodiment, when the cleaning plate 10 moves to the position in contact with the third magnet 28, the sludge is pushed into the sewage box 16. At this time, the cleaning plate 10 continues to move through the third magnet 28 to drive the closing plate 27 to move. When the two sets of closing plates 27 are in contact, they stop moving. At this time, the connection between the sewage box 16 and the shell 1 is blocked by the closing plate 27, and then the sludge is discharged through the spiral blade 17. The closing plate 27 blocks the sludge from entering the shell 1 by the wastewater backflow when the spiral blade 17 rotates, so that the sludge can be quickly discharged again, further improving the sludge cleaning effect. After the sludge is cleaned, the cleaning plate 10 moves in the opposite direction, and the closing plate 27 is driven to reset by the adsorption of the third magnet 28 and the cleaning plate 10. After the closing plate 27 is reset, the cleaning plate 10 is separated from the closing plate 27.

[0037] like Figure 1-Figure 8 As shown, the present invention provides a method of use, which is applied to the above-mentioned reactor for treating petroleum wastewater, and comprises the following steps: Step S1: transporting the microbial filler 29 into the housing 1 through the first feed pipe 2, transporting the wastewater to be treated into the housing 1 through the first feed pipe 2 until the set liquid level is reached, and at the same time, introducing air into the aeration pipe 6 through an external air supply device; Step S2: After the reaction in the shell 1 is stably carried out, the modified catalyst filler 30 is transported into the shell 1 through the second feed pipe 4; Step S3: When there is a lot of sludge at the bottom of the shell 1, the servo module 9 drives the two sets of cleaning plates 10 to move toward the middle through the moving plate 8. When the cleaning plates 10 move, they push the sludge at the bottom of the shell 1 to move toward the middle, and the sludge is pushed into the sewage box 16. Subsequently, the valve on the sewage pipe is opened, and the spiral blade 17 is driven to rotate by the rotating power part 18 to discharge the sludge from the sewage pipe, and then the cleaning plates 10 are reset; Step S4: When the cleaning plate 10 moves in the opposite direction and contacts the limit block 21, the limit block 21 will apply a force to the cleaning plate 10 to make it rotate until the fixing frame 12 contacts and fixes the second magnet 15. At this time, the cleaning plate 10 can pass over the limit block 21 and maintain an inclined state. When the inclined upper end of the cleaning plate 10 contacts the side wall of the shell 1 again, the cleaning plate 10 rotates and resets.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A reactor for treating petroleum wastewater, comprising a shell (1), wherein a first feed pipe (2) and a second feed pipe (4) are connected to the shell (1), characterized in that: The bottom of the shell (1) is connected to a sewage tank (16), a partition filter plate (5) is fixedly installed in the middle of the shell (1), a microbial filler (29) and a modified catalyst filler (30) are arranged on the partition filter plate (5), and the modified catalyst filler (30) is located above the microbial filler (29), and a plurality of groups of aeration pipes (6) evenly distributed and located below the partition filter plate (5) are fixedly installed in the shell (1), and the aeration pipes (6) are connected to an external air supply device; The shell (1) is fixedly installed with a plurality of parallel cross bars (7) located between the aeration pipe (6) and the bottom side wall of the shell (1); two groups of symmetrically distributed moving plates (8) are slidably installed on the cross bars (7); a servo module (9) is provided in the shell (1) for driving the two groups of moving plates (8) to move synchronously in opposite directions; a cleaning plate (10) is rotatably installed on the moving plate (8); a mounting shaft (11) is fixedly installed on the cleaning plate (10); the mounting shaft (11) is rotatably connected to the moving plate (8); a fixing frame (12) is fixedly installed on the mounting shaft (11); and the moving plate (8) is connected to the mounting shaft ( A cover (13) is fixedly installed at a position where the cleaning plate (10) is connected to the housing (11), and a first magnet (14) and a second magnet (15) are fixedly installed in the cover (13); when the cleaning plate (10) is in a vertical state, the fixing frame (12) contacts and fixes the first magnet (14), and the cleaning plate (10) is in sliding contact with the bottom surface of the housing (1); when the cleaning plate (10) is in an inclined state, the fixing frame (12) contacts and fixes the second magnet (15), and a gap exists between the lower end of the cleaning plate (10) and the bottom surface of the housing (1); a limit block (21) is provided in the housing (1) for pushing the cleaning plate (10) to rotate.

2. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A rotating plate (3) is rotatably mounted on the top of the shell (1); the second feed pipe (4) is fixedly mounted on the rotating plate (3) and penetrates the rotating plate (3); and light-transmitting glass is arranged around the rotating plate (3) on the top of the shell (1).

3. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A spiral blade (17) driven by a rotating power member (18) is rotatably installed in the sewage box (16), and one end of the sewage box (16) is connected to a sewage pipe with a valve.

4. A reactor for treating petroleum wastewater according to claim 1, characterized in that: The limit blocks (21) are provided in four groups and are symmetrically slidably mounted on the side wall of the housing (1). The limit blocks (21) are located on the moving track of the cleaning plate (10). The side of the limit blocks (21) close to the corresponding cleaning plate (10) is arranged as an inclined structure. An installation chamber (19) covering the limit blocks (21) is fixedly mounted on the outer side of the housing (1). A first elastic member (20) is fixedly mounted in the installation chamber (19). The movable end of the first elastic member (20) is fixedly connected to the end of the limit block (21).

5. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A slot (22) is provided in the side wall of the housing (1) on the extension line of the moving track of the cleaning plate (10), a push plate (23) is slidably mounted in the slot (22), a gap is provided between the bottom of the push plate (23) and the side wall of the slot (22), a second elastic member (25) is fixedly mounted on the side of the push plate (23) away from the cleaning plate (10), one end of the second elastic member (25) away from the push plate (23) is fixedly connected to the side wall of the housing (1), and when the second elastic member (25) is in the original length state, the push plate (23) extends out of the slot (22).

6. A reactor for treating petroleum wastewater according to claim 5, characterized in that: A plurality of sets of parallelly distributed mounting rods (24) are fixedly mounted in the slot (22); the mounting rods (24) are slidably connected to the push plate (23); when the push plate (23) is completely inserted into the slot (22), its side surface is flush with the inner wall of the housing (1).

7. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A slide groove (26) is provided at a position where the bottom side wall of the shell (1) is connected to the sewage box (16), a closing plate (27) is slidably installed in the slide groove (26), and a third magnet (28) is fixedly installed at the end of the closing plate (27). When the cleaning plate (10) moves, it contacts the third magnet (28) and pushes the closing plate (27) to move. A magnetic structure is provided at the position where the cleaning plate (10) contacts the third magnet (28) for being adsorbed and fixed to the third magnet (28).

8. A method of use, characterized in that: A reactor for treating petroleum wastewater as claimed in any one of claims 1 to 7, comprising the following steps: Step S1: transporting the microbial filler (29) into the housing (1) through the first feed pipe (2), transporting the wastewater to be treated into the housing (1) through the first feed pipe (2) until the liquid level reaches a set height, and at the same time, introducing air into the aeration pipe (6) through an external air supply device; Step S2: after the reaction in the shell (1) is stably carried out, the modified catalyst filler (30) is transported into the shell (1) through the second feed pipe (4); Step S3: When there is a lot of sludge at the bottom of the shell (1), the servo module (9) drives the two sets of cleaning plates (10) to move toward the middle through the moving plate (8). When the cleaning plates (10) move, the sludge at the bottom of the shell (1) is pushed toward the middle, and the sludge is pushed into the sewage box (16). Subsequently, the valve on the sewage pipe is opened, and the spiral blade (17) is driven to rotate by the rotating power part (18) to discharge the sludge from the sewage pipe. Then, the cleaning plates (10) are reset. Step S4: When the cleaning plate (10) moves in the reverse direction and contacts the limit block (21), the limit block (21) applies a force to the cleaning plate (10) to rotate it until the fixing frame (12) contacts and fixes the second magnet (15). At this time, the cleaning plate (10) can pass over the limit block (21) and maintain an inclined state. When the inclined upper end of the cleaning plate (10) contacts the side wall of the shell (1) again, the cleaning plate (10) rotates and resets.

Images